You incoming mail server name will always start with "mail." followed by your web address. So if your web address is www.abc.co.nz then your outgoing mail server will be: mail.abc.co.nz
Your outgoing mail server will be the same as you incoming mail server unless you have Telecom. If you have Telecom XTRA as your Internet provider then you will set your outgoing mail server to: smtp.xtra.co.nz (do not include your web address here, we will be using Telecom's system)
Be sure to tick the box to indicate that your outgoing server (SMTP) requires authentication. And to "Use same settings as my incoming mail server."
About the User Name and password; if your email address is john@abc.co.nz then write the account name like this: john+abc.co.nz. Here we have replaced the "@" with a "+".